1*062c5bc4SJason Schmidlapp /*
2*062c5bc4SJason Schmidlapp * pthread_attr_getstacksize.c
3*062c5bc4SJason Schmidlapp *
4*062c5bc4SJason Schmidlapp * Description:
5*062c5bc4SJason Schmidlapp * This translation unit implements operations on thread attribute objects.
6*062c5bc4SJason Schmidlapp *
7*062c5bc4SJason Schmidlapp * --------------------------------------------------------------------------
8*062c5bc4SJason Schmidlapp *
9*062c5bc4SJason Schmidlapp * Pthreads-embedded (PTE) - POSIX Threads Library for embedded systems
10*062c5bc4SJason Schmidlapp * Copyright(C) 2008 Jason Schmidlapp
11*062c5bc4SJason Schmidlapp *
12*062c5bc4SJason Schmidlapp * Contact Email: jschmidlapp@users.sourceforge.net
13*062c5bc4SJason Schmidlapp *
14*062c5bc4SJason Schmidlapp *
15*062c5bc4SJason Schmidlapp * Based upon Pthreads-win32 - POSIX Threads Library for Win32
16*062c5bc4SJason Schmidlapp * Copyright(C) 1998 John E. Bossom
17*062c5bc4SJason Schmidlapp * Copyright(C) 1999,2005 Pthreads-win32 contributors
18*062c5bc4SJason Schmidlapp *
19*062c5bc4SJason Schmidlapp * Contact Email: rpj@callisto.canberra.edu.au
20*062c5bc4SJason Schmidlapp *
21*062c5bc4SJason Schmidlapp * The original list of contributors to the Pthreads-win32 project
22*062c5bc4SJason Schmidlapp * is contained in the file CONTRIBUTORS.ptw32 included with the
23*062c5bc4SJason Schmidlapp * source code distribution. The list can also be seen at the
24*062c5bc4SJason Schmidlapp * following World Wide Web location:
25*062c5bc4SJason Schmidlapp * http://sources.redhat.com/pthreads-win32/contributors.html
26*062c5bc4SJason Schmidlapp *
27*062c5bc4SJason Schmidlapp * This library is free software; you can redistribute it and/or
28*062c5bc4SJason Schmidlapp * modify it under the terms of the GNU Lesser General Public
29*062c5bc4SJason Schmidlapp * License as published by the Free Software Foundation; either
30*062c5bc4SJason Schmidlapp * version 2 of the License, or (at your option) any later version.
31*062c5bc4SJason Schmidlapp *
32*062c5bc4SJason Schmidlapp * This library is distributed in the hope that it will be useful,
33*062c5bc4SJason Schmidlapp * but WITHOUT ANY WARRANTY; without even the implied warranty of
34*062c5bc4SJason Schmidlapp * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
35*062c5bc4SJason Schmidlapp * Lesser General Public License for more details.
36*062c5bc4SJason Schmidlapp *
37*062c5bc4SJason Schmidlapp * You should have received a copy of the GNU Lesser General Public
38*062c5bc4SJason Schmidlapp * License along with this library in the file COPYING.LIB;
39*062c5bc4SJason Schmidlapp * if not, write to the Free Software Foundation, Inc.,
40*062c5bc4SJason Schmidlapp * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
41*062c5bc4SJason Schmidlapp */
42*062c5bc4SJason Schmidlapp
43*062c5bc4SJason Schmidlapp #include "pthread.h"
44*062c5bc4SJason Schmidlapp #include "implement.h"
45*062c5bc4SJason Schmidlapp
46*062c5bc4SJason Schmidlapp
47*062c5bc4SJason Schmidlapp int
pthread_attr_getstacksize(const pthread_attr_t * attr,size_t * stacksize)48*062c5bc4SJason Schmidlapp pthread_attr_getstacksize (const pthread_attr_t * attr, size_t * stacksize)
49*062c5bc4SJason Schmidlapp /*
50*062c5bc4SJason Schmidlapp * ------------------------------------------------------
51*062c5bc4SJason Schmidlapp * DOCPUBLIC
52*062c5bc4SJason Schmidlapp * This function determines the size of the stack on
53*062c5bc4SJason Schmidlapp * which threads created with 'attr' will run.
54*062c5bc4SJason Schmidlapp *
55*062c5bc4SJason Schmidlapp * PARAMETERS
56*062c5bc4SJason Schmidlapp * attr
57*062c5bc4SJason Schmidlapp * pointer to an instance of pthread_attr_t
58*062c5bc4SJason Schmidlapp *
59*062c5bc4SJason Schmidlapp * stacksize
60*062c5bc4SJason Schmidlapp * pointer to size_t into which is returned the
61*062c5bc4SJason Schmidlapp * stack size, in bytes.
62*062c5bc4SJason Schmidlapp *
63*062c5bc4SJason Schmidlapp *
64*062c5bc4SJason Schmidlapp * DESCRIPTION
65*062c5bc4SJason Schmidlapp * This function determines the size of the stack on
66*062c5bc4SJason Schmidlapp * which threads created with 'attr' will run.
67*062c5bc4SJason Schmidlapp *
68*062c5bc4SJason Schmidlapp * NOTES:
69*062c5bc4SJason Schmidlapp * 1) Function supported only if this macro is
70*062c5bc4SJason Schmidlapp * defined:
71*062c5bc4SJason Schmidlapp *
72*062c5bc4SJason Schmidlapp * _POSIX_THREAD_ATTR_STACKSIZE
73*062c5bc4SJason Schmidlapp *
74*062c5bc4SJason Schmidlapp * 2) Use on newly created attributes object to
75*062c5bc4SJason Schmidlapp * find the default stack size.
76*062c5bc4SJason Schmidlapp *
77*062c5bc4SJason Schmidlapp * RESULTS
78*062c5bc4SJason Schmidlapp * 0 successfully retrieved stack size,
79*062c5bc4SJason Schmidlapp * EINVAL 'attr' is invalid
80*062c5bc4SJason Schmidlapp * ENOSYS function not supported
81*062c5bc4SJason Schmidlapp *
82*062c5bc4SJason Schmidlapp * ------------------------------------------------------
83*062c5bc4SJason Schmidlapp */
84*062c5bc4SJason Schmidlapp {
85*062c5bc4SJason Schmidlapp #ifdef _POSIX_THREAD_ATTR_STACKSIZE
86*062c5bc4SJason Schmidlapp
87*062c5bc4SJason Schmidlapp if (pte_is_attr (attr) != 0)
88*062c5bc4SJason Schmidlapp {
89*062c5bc4SJason Schmidlapp return EINVAL;
90*062c5bc4SJason Schmidlapp }
91*062c5bc4SJason Schmidlapp
92*062c5bc4SJason Schmidlapp /* Everything is okay. */
93*062c5bc4SJason Schmidlapp *stacksize = (*attr)->stacksize;
94*062c5bc4SJason Schmidlapp return 0;
95*062c5bc4SJason Schmidlapp
96*062c5bc4SJason Schmidlapp #else
97*062c5bc4SJason Schmidlapp
98*062c5bc4SJason Schmidlapp return ENOSYS;
99*062c5bc4SJason Schmidlapp
100*062c5bc4SJason Schmidlapp #endif /* _POSIX_THREAD_ATTR_STACKSIZE */
101*062c5bc4SJason Schmidlapp
102*062c5bc4SJason Schmidlapp }
103